381384025751 has 4 divisors (see below), whose sum is σ = 381499635000. Its totient is φ = 381268416504.

The previous prime is 381384025747. The next prime is 381384025843. The reversal of 381384025751 is 157520483183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381384025751 - 2² = 381384025747 is a prime.

It is a super-2 number, since 2×381384025751² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381384025696 and 381384025705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381384025051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57799676 + ... + 57806273.

It is an arithmetic number, because the mean of its divisors is an integer number (95374908750).

Almost surely, 2^381384025751 is an apocalyptic number.

381384025751 is a deficient number, since it is larger than the sum of its proper divisors (115609249).

381384025751 is a wasteful number, since it uses less digits than its factorization.

381384025751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115609248.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 381384025751 in words is "three hundred eighty-one billion, three hundred eighty-four million, twenty-five thousand, seven hundred fifty-one".